Register and control



March 24, 1936. H. H. LORENZ REGISTER AND CONTROL Filed Aug. 1'7, 195s INVENTOR. H. H. Low-en's,

A TTORNEYS.

QM 1AM Patented 24,- 1936 UNITED STATES PATENT OFFICE REGISTER AND CONTROL H. Lorenz, Chappaqua, N. Y., assignor Richardson & Boynton Company, New York, N. Y., a corporation of New ork Application August 11, 1933, Serial No. 685,534 3 Claims. (Cl. 98-101) This invention relates to a structurally and functionally improved control capable of use innumerous different associations, but primarily intended to be employed in connection with heatfi ventilating, cooling and airsconditioning sys- It is an object of the invention to furnish an apparatus of this character which will evenly and efflciently distribute into or withdraw air from an enclosure, such as a room, and, by means of which the air within the room will be caused to assume the desiredcondition in a. very short interval of time, and without annoyance or discom fort to the occupants of suchenclosure during such interval.

A further object is that of furnishing a control for association with systems of the types aforementioned, and by means of which the air conditioned withina number of separate enclosures may be individually controlled so that an 'ex-' izrri-gnaely simple and economical system is proe An additional object is that of furnishing an apparatus of this character which will embrace relatively few parts, each individually simple and rugged in construction and cooperating with great efiiciency for-indefiniteperiods of time, without any-necessity of repairs or replacements. Consequently, the apparatus contemplated within the scope of the present invention may be economically manufactured and thereafter main-' tained at minimum expense.

with these and other objects in mind, reference is had to the attached sheet of drawing illus-' trating practical embodiments of the invention,

and in which:

iste Figure 1 is a transverse sectional view, taken througha discharge duct, and showing the con-- trol associated therewith;

Figure 2 is a similar view of an intake duct or Figure 3 is a perspective view showing the application of both of these, controls to an .enclosure;

Figure 4 is a diagrammaticview of a, wiring circuit which may be employed in connection with a control apparatus, and

Figure 5 is a view similar to Figure '4, but showrespects, such a layout is preferable, it will be appreciatedthat the ducts might be confined to one wall of the enclosure, or even extend throughout a portion only of one or more walls. Likewise, while they are preferably embodied within the 6 wall structure, this is notaltogether essential, although it is preferred that, as shown, they be disposed adjacent the ceiling and floor surfaces.

Both of these ducts may be formed of sheet metal .or similar material to provide channel 10 members, in the outer faces of which a gap is provided, the edges of such gap being in each instance defined by spaced beads 1. Extending to the rear faces and in communication with the interior of the channel members 5 and .6, are ducts 8 anda', any desirable number of the latter being furnished along the length of the channel members. In case merely one such duct is assoelated with each member, then it is preferred that the parts be connected substantially intermediate the ends of the channel member.

In both the discharge and intake channel members, it is preferred that there be provided, adu jacent the upper bead and upon the inner face of each member, a hook shaped extension 9. In the case of the channel member through which air is admitted to the enclosure, there is associated with this ledge or extension a. shutter or damper l0, which has a generally curved body with its upper edge bent outwardly and downwardly and resting within the extension or flange 9, the lower edge of the body extending outwardly; through the gap between the bead'members 1 and normally in contact with the lower bead. In the case of the second member, the damper or shutter II is similarly constructed and arranged, except that it does not extend through the gap and in its normal position lies substantially in contact-with-the inner face of the lower body. It will be appreciated, in connection with both of 40 these members, that the damper or shutter eleit will flow from the duct 8. into themember 5 jluid flows through the duct 8. If such flow in- 66 p 80 magnetis energized, the shutter will be drawn firmly into contact with the lower bead, thus pre- 'sation of flow, the parts will return to the posi- -ti on shown in Figure 1, whereupon the entire creases in volume, the shutter will automatically accommodate itself to such increase by swinging outwardly to a greater extent. Upon the cescycle may be repeated.

In the case of the channel member through which air is withdrawn from the enclosure, a

reverse of the foregoing action occurs. Either due to the building up of pressure within the enclosure, or due to suction communicated through the duct- 8 to thechannel member 6, the shutter II will swing inwardly to'an extent 1 proportional to the volume of air being discharged or withdrawn. By the provision ofsuch a shutter the entrance of dust into the channel member is normally prevented. When the shutter finallyQdoes open, any dust particles in suspension will move with relatively great speed incident to the rapidity of flow o .the air through the channel member, and wil consequently not be deposited within the same.

,'Now with a view to controlling the air conditioned within the individual enclosures, it is preferred that an electromagnet be associated with the channel 5. 'I'his element, which has been indicated at l2, may be mounted upon a bracket l3 secured to the inner face of such member and acooperating armature I4 may be secured to the shutter Ill. It is obvious that when the electroventing the further discharge of air from the member 3. Energization of the'electromagnet '-may be accomplished by, for example, arranging 'the same in circuit with a thermostat individual to the enclosure with which such channel is associated.- 7

' Referring to Figure 4, a pair of double contact thermostats have been shown at l5. As afore brought out, the electromagnets l2 are arranged in series with such thermostats so that whenthe dry bulb temperature of the air reaches a predetermined point, the electromagnets are ener-.

gized to close the shutters.- The second contacts of these thermostats may be arranged in series, one with the other, so that when the last thermostat'closes, a relay I 6 will be energized to interrupt the circuit by a motor II, which latter con-.

trols ablowercommunicati-ng with the duct 8 and/or an oil burner or stoker coupled to the furnace. Obviously in lieu of, or supplemental to the thermostats, further controls might be pro vided, particularly if the invention were employed in connection with an air-conditioning and cooling system where wet bulb temperature, dew point and similar factors are essential features in the condition to be maintained. This illustration has not been resorted to in that the hook-up'nec-' essary in this, connection will be .well understood by anyone skilled in the art, and to include such illustration would accordingly needlessly'compli-' cate the present views.

In Figure 5 a further form of wiring diagram has been shown. Here again, do'uble point thermostats have been indicated at I5 and which are arranged in, series with the electromagnets l2. However, in this view, at least one thermostat is arranged in series with a relay l8, which controls a switch I! capable of being thrown to positions atwhich the motor I! operates at greater or lesser speeds. In such a case it will be appreciated that as individual enclosures reach a condition desired, the speed of operation of the blower will be decreased so as to supply sumcient air in proper condition to the other enclosures, and when the latter reach such condition, cessation of operation will result.

Thus, among others, the several objects of the invention are achieved. It will be understood that the structure hereinbefore illustrated and described, might be modified in numerous particulars, and that the wiring diagrams as afore brought out, could be rearranged or added to, as desired. ;In fact, undercertain conditions, electromagnetic controls might be dispensed with.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A control including, in combination, a member providing a passage way formed with an opening for the flow of fluid, a shutter .element balanced to extend adjacent said opening and unrestrained to swing with respect to said member, a bracket extending from said member and disposed within said support, and theibody of said shutter being free to swing and extending downwardly and through said opening, the under surface of'said shutter being disposed adjacent the "edge of said member.

Y 3. A control including, in combination, a mem; ber providing a passage way formed with an opening for the flow of fluid, a support, hook shaped in cross section and secured to the inner face of said member adjacent theupper edge of its-opening, a shutter having a hook shaped upper end disposed within said support, the body of said shutter being free to swing and extending downwardly through said opening, the under surface of said shutter being disposed adjacent an edge defining the opening of said member, and means for forcing such under surface of said shutter and edge of said member into intimate contact with each other.

HARRY H. LORENZ. 

